thermostat

1
hi all, been haveing trouble withrunning hot no2 son borrowed turtle[vans name]to go fishing anyway keept blowing coolant out of over flow bottle,top hose cool bottom boiling change thermostat lower temp 77 deg.
old one genuine 87.Any thoughts on correct running temp,been a prob forsome time i felt running to
hot. cheers andy.
2

Andy,

If this is a thermostat problem, it is not related to the operating temperature of the thermostat.  The MV engine is designed to run at 87 and the ECU responds accordingly.

I suggest that you get a new genuine thermostat (Behr is an OEM manufacturer) so that you know where you are starting from.  The only cooling problem that I have experienced was with a non-genuine thermostat.  It had a slow and erratic response; when a genuine thermostat was fitted, response returned to rapid and stable.

If you still have a problem, then it is time to look at the rest of the system, the first step being to ensure that there is full flow throughout.

Les

From: Syncro_T3_Australia@yahoogroups.com [mailto:Syncro_T3_Australia@yahoogroups.com] On Behalf Of andysherriff48
Sent: 08 September 2012 13:10
To: Syncro_T3_Australia@yahoogroups.com
Subject: [Syncro_T3_Australia] thermostat

hi all, been haveing trouble withrunning hot no2 son borrowed turtle[vans name]to go fishing anyway keept blowing coolant out of over flow bottle,top hose cool bottom boiling change thermostat lower temp 77 deg.
old one genuine 87.Any thoughts on correct running temp,been a prob forsome time i felt running to
hot. cheers andy.

3

I should have added that this includes ensuring that that the system is fully bled; this might include the bleed at the top of the radiator and the bleed at the top of the thermostat housing.

 

From: Syncro_T3_Australia@yahoogroups.com [mailto:Syncro_T3_Australia@yahoogroups.com] On Behalf Of Les Harris
Sent: 08 September 2012 13:24
To: Syncro_T3_Australia@yahoogroups.com
Subject: RE: [Syncro_T3_Australia] thermostat

Andy,

If this is a thermostat problem, it is not related to the operating temperature of the thermostat.  The MV engine is designed to run at 87 and the ECU responds accordingly.

I suggest that you get a new genuine thermostat (Behr is an OEM manufacturer) so that you know where you are starting from.  The only cooling problem that I have experienced was with a non-genuine thermostat.  It had a slow and erratic response; when a genuine thermostat was fitted, response returned to rapid and stable.

If you still have a problem, then it is time to look at the rest of the system, the first step being to ensure that there is full flow throughout.

Les

From: Syncro_T3_Australia@yahoogroups.com [mailto:Syncro_T3_Australia@yahoogroups.com] On Behalf Of andysherriff48
Sent: 08 September 2012 13:10
To: Syncro_T3_Australia@yahoogroups.com
Subject: [Syncro_T3_Australia] thermostat

hi all, been haveing trouble withrunning hot no2 son borrowed turtle[vans name]to go fishing anyway keept blowing coolant out of over flow bottle,top hose cool bottom boiling change thermostat lower temp 77 deg.
old one genuine 87.Any thoughts on correct running temp,been a prob forsome time i felt running to
hot. cheers andy.

4

Hi Andy

It sounds like pressurising of your cooling system by cylinder compression gases due to a faulty head gasket. Check it out at a radiator shop for hydro carbons in your coolant – this is a sure tell tale test.

If this is so, a top overhaul is facing you.

Yurik

 

From: Syncro_T3_Australia@yahoogroups.com [mailto:Syncro_T3_Australia@yahoogroups.com] On Behalf Of andysherriff48
Sent: Saturday, 8 September 2012 11:10 AM
To: Syncro_T3_Australia@yahoogroups.com
Subject: [Syncro_T3_Australia] thermostat

 

 

hi all, been haveing trouble withrunning hot no2 son borrowed turtle[vans name]to go fishing anyway keept blowing coolant out of over flow bottle,top hose cool bottom boiling change thermostat lower temp 77 deg.
old one genuine 87.Any thoughts on correct running temp,been a prob forsome time i felt running to
hot. cheers andy.

5
Andy as Les said bleed the system first and then from there check all the elements of the cooling system and in particular a possible blocked radiator. Don't want to scare you but I had those symptoms for years and it turned out that exhaust gasses were getting past the head gasket & displacing the coolant with exhaust. Would run a little hot at 100kph & then at the end of the run would overheat & spew coolant out of the overflow bottle as the lower engine speed couldn't pump the aerated mixture. Check to see if there are signs of greasy black gunk in the overflow bottle & also smell it . Does it smell like exhuast? This is a worst case scenario so hope it's not the case. Good luck Eddie.

--- In Syncro_T3_Australia@yahoogroups.com, "andysherriff48" <andysherriff48@...> wrote:
>
> hi all, been haveing trouble withrunning hot no2 son borrowed turtle[vans name]to go fishing anyway keept blowing coolant out of over flow bottle,top hose cool bottom boiling change thermostat lower temp 77 deg.
> old one genuine 87.Any thoughts on correct running temp,been a prob forsome time i felt running to
> hot. cheers andy.
>